upstack

Ship a feature branch: write docs, bump version, create PR with screenshots and evidence. Links Linear tickets if available. Use when ready to merge.

Functional verification against the plan. Manually confirms every planned path works, takes screenshots, saves API examples as evidence for the PR. Use after /execute.

Build a plan to spec using Red/Green TDD. Writes tests first, confirms they fail, then implements. Supports --ticket mode for scoped execution with dependency checks and file-level scope guardrails. Use after /plan to implement a feature or fix.

Plan a feature or bug fix with deep engineering analysis. Explores the codebase, compares implementation alternatives, maps error paths, and produces test coverage diagrams — all before any code is written. Emits structured YAML tickets with dependency DAG and self-contained agent briefs. Optionally materializes to Linear and TODOS.md. Use when starting new work, breaking down a feature, or before any code changes. Strongly recommended as the first step before /execute.

Full sprint flow: /plan -> /execute -> /validate -> /review -> /ship-pr. Always runs /plan (which auto-detects small follow-ups via fast-path). Loops review/execute until clean. End result is a pushed PR.

Analyzes git state, TODOs, and project context to recommend which upstack skill to run next. Use when starting a session or unsure what to do.

Independent exploratory QA. Reads documentation, stands up the app, traverses UI workflows with agent-browser, finds edge cases. Use anytime to test app quality.

Senior engineer code review. Compares the current branch against its base branch for bugs, security risks, and code quality issues. Best run in a clean conversation.

Upgrade upstack to the latest version. Detects global vs vendored install, runs the upgrade, and shows what's new.

Check and install prerequisites for upstack. Verifies git, gh, agent-browser, and skill symlinks. Use when first setting up or troubleshooting.